878 quakes in 24 hours: how New Zealand shook in the wake of the monster Kaikoura eqnz

Geonet recorded 878
events in the 24 hours after the monster 7.5-magnitude shock, more than
300 of them 4-magnitude or greater. Here Chris McDowall plots the quakes
on an animated map.

This animation shows all the earthquake events recorded by GeoNet’s monitoring network between Palmerston North and Christchurch on Monday, November 14.

The big quake was 16km deep with a magnitude of 7.5 and
struck at 12.02am. This was followed by hundreds of aftershocks.
Including a cluster of three 6+ quakes in the first hour.

The dark lines on the map represent major faults.
Circles are coloured according to quake depth. The darkest circles
occurred less than 20km from the surface. The palest circles represent
events 60 km or deeper.
Fault data from GNS Science. Quake data from GeoNet.